No overheating, High Cpu,High Fan Speed

[kahfa92]

A little time after start-up as it is waiting idle, fan speed is increasing abnormally,There is no sign of overheating but then it shuts down itself.I've cleaned the fan.All of unnecessary programs aren't being started.System applications only but it constantly shut down itself.
Thank in advance

 

[Ra_V_en]

There is no sign of overheating but then it shuts down itself.Thank in advance

How did you test the temps?
Are we talking about PC or laptop?

 

[kahfa92]

I tested by touching
It's laptop.

 

[13thmonkey]

Touching what? Use coretemp/speefan to test your actual temps.

 

[C12Friedman]

I'm going to suggest checking your temps with a program such as SpeedFan http/www.almico.com/speedfan.php or CoreTemp http/www.alcpu.com/CoreTemp/ or HardwareMonitor http/www.cpuid.com/softwares/hwmonitor.html
I suspect heat is the issue but see what one of the above programs tell you for temps (I personally prefer CoreTemp)
When the fan was cleaned, was the laptop disassembled? Was the heat sink assembly removed?